Finding the Fourth Proportional to 42,971.53, 64,433.71 and 14,889.08

Step by Step Solution

1. Step 1: Write the proportion equation
   42,971.53 : 64,433.71 = 14,889.08 : x
2. Step 2: Convert to fraction form
   42,971.53/64,433.71 = 14,889.08/x
3. Step 3: Cross multiply
   42,971.53x = 64,433.71 × 14,889.08
4. Step 4: Simplify right side
   42,971.53x = 959,358,662.89
5. Step 5: Solve for x
   x = 959,358,662.89/42,971.53
6. Step 6: Final answer
   x = 22,325.45